Sony PCV-R528DS - Manual (Page 77)

System Board 69
Headphones, Line In, Mic Connectors
The Headphones jack is a stereo mini-jack (3.5 mm) that connects to
headphones. The Line In jack is a stereo mini-jack (3.5 mm) that connects
to a stereo audio source (not an audio source from a video device). The
Mic In jack is a stereo mini-jack (3.5 mm) that connects to a microphone.
Headphones
Line In
Mic
12
34
5
KY0058.VSD
Mic
Line In
Headphones
OM04713.VSD
Audio Right Out
Audio Left Out
OM04713B.VSD
Audio Right In
Audio Left In
L Imbalance
OM04713A.VSD
Electret Bias Voltage
Mic Imbalance
Mic Mono In